diff --git a/jest.config.ts b/jest.config.ts index 5e67945..cf51c09 100644 --- a/jest.config.ts +++ b/jest.config.ts @@ -5,6 +5,7 @@ const config: Config = { fakeTimers: { enableGlobally: true, }, + testMatch: ['**/?(*.)+(spec|test).ts?(x)', '!**/DAppConnector.test.ts'], } export default config diff --git a/package-lock.json b/package-lock.json index 92694be..f227f21 100644 --- a/package-lock.json +++ b/package-lock.json @@ -9,14 +9,18 @@ "version": "0.0.1", "license": "MIT", "dependencies": { - "@hashgraph/sdk": "^2.31.0" + "@hashgraph/sdk": "^2.31.0", + "@walletconnect/qrcode-modal": "^1.8.0", + "@walletconnect/sign-client": "^2.10.0", + "@walletconnect/types": "^2.10.0", + "@walletconnect/utils": "^2.10.0" }, "devDependencies": { "@babel/preset-env": "^7.22.10", "@babel/preset-typescript": "^7.22.5", "@types/jest": "^29.5.3", - "@walletconnect/types": "^2.9.2", "jest": "^29.6.2", + "lokijs": "^1.5.12", "ts-node": "^10.9.1", "typescript": "^5.1.6" } @@ -2970,6 +2974,152 @@ 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Please upgrade to a v2 SDK. For details see: https://docs.walletconnect.com/" + }, + "node_modules/@walletconnect/core": { + "version": "2.10.2", + "resolved": "https://registry.npmjs.org/@walletconnect/core/-/core-2.10.2.tgz", + "integrity": "sha512-JQz/xp3SLEpTeRQctdck2ugSBVEpMxoSE+lFi2voJkZop1hv6P+uqr6E4PzjFluAjeAnKlT1xvra0aFWjPWVcw==", + "dependencies": { + "@walletconnect/heartbeat": "1.2.1", + "@walletconnect/jsonrpc-provider": "1.0.13", + "@walletconnect/jsonrpc-types": "1.0.3", + "@walletconnect/jsonrpc-utils": "1.0.8", + "@walletconnect/jsonrpc-ws-connection": "1.0.13", + "@walletconnect/keyvaluestorage": "^1.0.2", + "@walletconnect/logger": "^2.0.1", + "@walletconnect/relay-api": "^1.0.9", + "@walletconnect/relay-auth": "^1.0.4", + "@walletconnect/safe-json": "^1.0.2", + "@walletconnect/time": "^1.0.2", + "@walletconnect/types": "2.10.2", + "@walletconnect/utils": "2.10.2", + "events": "^3.3.0", + "lodash.isequal": "4.5.0", + "uint8arrays": "^3.1.0" + } + }, + "node_modules/@walletconnect/core/node_modules/@walletconnect/safe-json": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/@walletconnect/safe-json/-/safe-json-1.0.2.tgz", + "integrity": "sha512-Ogb7I27kZ3LPC3ibn8ldyUr5544t3/STow9+lzz7Sfo808YD7SBWk7SAsdBFlYgP2zDRy2hS3sKRcuSRM0OTmA==", + "dependencies": { + "tslib": "1.14.1" + } + }, + "node_modules/@walletconnect/environment": { + "version": "1.0.1", + "resolved": "https://registry.npmjs.org/@walletconnect/environment/-/environment-1.0.1.tgz", + "integrity": "sha512-T426LLZtHj8e8rYnKfzsw1aG6+M0BT1ZxayMdv/p8yM0MU+eJDISqNY3/bccxRr4LrF9csq02Rhqt08Ibl0VRg==", + "dependencies": { + "tslib": "1.14.1" + } + }, "node_modules/@walletconnect/events": { "version": "1.0.1", "resolved": "https://registry.npmjs.org/@walletconnect/events/-/events-1.0.1.tgz", "integrity": "sha512-NPTqaoi0oPBVNuLv7qPaJazmGHs5JGyO8eEAk5VGKmJzDR7AHzD4k6ilox5kxk1iwiOnFopBOOMLs86Oa76HpQ==", - 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Please upgrade to a v2 SDK. For details see: https://docs.walletconnect.com/", + "dependencies": { + "@walletconnect/browser-utils": "^1.8.0", + "@walletconnect/mobile-registry": "^1.4.0", + "@walletconnect/types": "^1.8.0", + "copy-to-clipboard": "^3.3.1", + "preact": "10.4.1", + "qrcode": "1.4.4" + } + }, + "node_modules/@walletconnect/qrcode-modal/node_modules/@walletconnect/types": { + "version": "1.8.0", + "resolved": "https://registry.npmjs.org/@walletconnect/types/-/types-1.8.0.tgz", + "integrity": "sha512-Cn+3I0V0vT9ghMuzh1KzZvCkiAxTq+1TR2eSqw5E5AVWfmCtECFkVZBP6uUJZ8YjwLqXheI+rnjqPy7sVM4Fyg==", + "deprecated": "WalletConnect's v1 SDKs are now deprecated. Please upgrade to a v2 SDK. 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"scripts": { "build": "tsc", "test": "jest", + "test:connect": "jest --testMatch '**/DAppConnector.test.ts' --verbose", "prepublishOnly": "npm run build" }, "author": "", @@ -24,12 +25,16 @@ "@babel/preset-env": "^7.22.10", "@babel/preset-typescript": "^7.22.5", "@types/jest": "^29.5.3", - "@walletconnect/types": "^2.9.2", "jest": "^29.6.2", + "lokijs": "^1.5.12", "ts-node": "^10.9.1", "typescript": "^5.1.6" }, "dependencies": { - "@hashgraph/sdk": "^2.31.0" + "@hashgraph/sdk": "^2.31.0", + "@walletconnect/qrcode-modal": "^1.8.0", + "@walletconnect/sign-client": "^2.10.0", + "@walletconnect/types": "^2.10.0", + "@walletconnect/utils": "^2.10.0" } -} +} \ No newline at end of file diff --git a/src/DAppConnector.ts b/src/DAppConnector.ts new file mode 100644 index 0000000..5b5b466 --- /dev/null +++ b/src/DAppConnector.ts @@ -0,0 +1,203 @@ +import { AccountId, LedgerId } from '@hashgraph/sdk' +import { SessionTypes, SignClientTypes } from '@walletconnect/types' +import QRCodeModal from '@walletconnect/qrcode-modal' +import Client, { SignClient } from '@walletconnect/sign-client' +import { getSdkError } from '@walletconnect/utils' +import { HederaJsonRpcMethods, accountAndLedgerFromSession, networkNamespaces } from './lib' +import { DAppSigner } from './providers/DAppSigner' + +type BaseLogger = 'error' | 'warn' | 'info' | 'debug' | 'trace' | 'fatal' + +export class DAppConnector { + dAppMetadata: SignClientTypes.Metadata + network: LedgerId = LedgerId.TESTNET + projectId?: string + supportedMethods: string[] = [] + supportedEvents: string[] = [] + + walletConnectClient: Client | null = null + signers: DAppSigner[] = [] + isInitializing = false + + constructor( + metadata: SignClientTypes.Metadata, + network: LedgerId, + projectId: string | undefined, + methods?: string[], + events?: string[], + ) { + this.dAppMetadata = metadata + this.network = network + this.supportedMethods = methods ?? Object.values(HederaJsonRpcMethods) + this.supportedEvents = events ?? [] + this.projectId = projectId + } + + async init({ logger }: { logger?: BaseLogger } = {}) { + try { + this.isInitializing = true + if (!this.projectId) { + throw new Error('Project ID is not defined') + } + this.walletConnectClient = await SignClient.init({ + logger, + relayUrl: 'wss://relay.walletconnect.com', + projectId: this.projectId, + metadata: this.dAppMetadata, + }) + const existingSession = await this.checkPersistedState() + existingSession.forEach(async (session) => { + await this.onSessionConnected(session) + }) + } finally { + this.isInitializing = false + } + } + + public async connectQR(pairingTopic?: string): Promise { + return this.abortableConnect(async () => { + try { + const { uri, approval } = await this.connectURI(pairingTopic) + if (!uri) throw new Error('URI is not defined') + QRCodeModal.open(uri, () => { + throw new Error('User rejected pairing') + }) + + await this.onSessionConnected(await approval()) + } finally { + QRCodeModal.close() + } + }) + } + + public async connect( + launchCallback: (uri: string) => void, + pairingTopic?: string, + ): Promise { + return this.abortableConnect(async () => { + const { uri, approval } = await this.connectURI(pairingTopic) + if (!uri) throw new Error('URI is not defined') + launchCallback(uri) + const session = await approval() + await this.onSessionConnected(session) + }) + } + + private abortableConnect = async (callback: () => Promise): Promise => { + const pairTimeoutMs = 480_000 + const timeout = setTimeout(() => { + QRCodeModal.close() + throw new Error(`Connect timed out after ${pairTimeoutMs}(ms)`) + }, pairTimeoutMs) + + try { + return await callback() + } finally { + clearTimeout(timeout) + } + } + + public async disconnect(topic: string): Promise { + if (!this.walletConnectClient) { + throw new Error('WalletConnect is not initialized') + } + if (!topic) { + throw new Error('No topic provided') + } + + await this.walletConnectClient.disconnect({ + topic, + reason: getSdkError('USER_DISCONNECTED'), + }) + } + + private createSigners(session: SessionTypes.Struct): DAppSigner[] { + const allNamespaceAccounts = accountAndLedgerFromSession(session) + return allNamespaceAccounts.map( + ({ account, network }: { account: AccountId; network: LedgerId }) => + new DAppSigner(account, this.walletConnectClient!, session.topic, network), + ) + } + + private async onSessionConnected(session: SessionTypes.Struct) { + this.signers.push(...this.createSigners(session)) + } + + private async pingWithRetry(topic: string, retries = 3): Promise { + try { + await this.walletConnectClient!.ping({ topic }) + } catch (error) { + if (retries > 0) { + console.log(`Ping failed, ${retries} retries left. Retrying in 1 seconds...`) + await new Promise((resolve) => setTimeout(resolve, 1000)) + await this.pingWithRetry(topic, retries - 1) + } else { + console.log(`Ping failed after ${retries} retries. Aborting...`) + throw error + } + } + } + + private async checkPersistedState() { + if (!this.walletConnectClient) { + throw new Error('WalletConnect is not initialized') + } + + if (this.walletConnectClient.session.length) { + const sessionCheckPromises: Promise[] = + this.walletConnectClient.session.getAll().map( + (session: SessionTypes.Struct) => + new Promise(async (resolve, reject) => { + try { + await this.pingWithRetry(session.topic) + resolve(session) + } catch (error) { + try { + console.log('Ping failed, disconnecting from session. Topic: ', session.topic) + await this.walletConnectClient!.disconnect({ + topic: session.topic, + reason: getSdkError('SESSION_SETTLEMENT_FAILED'), + }) + } catch (e) { + console.log('Non existing session with topic:', session.topic) + reject('Non existing session') + } + } + }), + ) + const sessionCheckResults = (await Promise.allSettled(sessionCheckPromises)) as { + status: 'fulfilled' | 'rejected' + value: SessionTypes.Struct + }[] + + const sessions = sessionCheckResults + .filter((result) => result.status === 'fulfilled') + .map((result) => result.value as SessionTypes.Struct) + + const errors = sessionCheckResults.filter((result) => result.status === 'rejected') + if (errors.length) { + console.log('Errors while checking persisted state:', errors) + } + + return sessions + } + + return [] + } + + private async connectURI( + pairingTopic?: string, + ): Promise<{ uri?: string; approval: () => Promise }> { + if (!this.walletConnectClient) { + throw new Error('WalletConnect is not initialized') + } + return this.walletConnectClient.connect({ + pairingTopic, + requiredNamespaces: networkNamespaces( + this.network, + this.supportedMethods, + this.supportedEvents, + ), + }) + } +} diff --git a/src/index.ts b/src/index.ts index 64aadca..dc78b2d 100644 --- a/src/index.ts +++ b/src/index.ts @@ -1,2 +1,3 @@ export * from './lib' export * from './types' +export { DAppConnector } from './DAppConnector' diff --git a/src/lib/utils.ts b/src/lib/utils.ts index 0736f6e..8d689c8 100644 --- a/src/lib/utils.ts +++ b/src/lib/utils.ts @@ -1,4 +1,6 @@ +import { Buffer } from 'buffer' import { AccountId, Transaction, LedgerId } from '@hashgraph/sdk' +import { ProposalTypes, SessionTypes } from '@walletconnect/types' /** * Freezes a transaction if it is not already frozen. Transactions must @@ -161,3 +163,42 @@ export function networkNameToCAIPChainId(networkName: string): string { const chainId = ledgerIdToCAIPChainId(ledgerId) return chainId } + +/** + * Create a `ProposalTypes.RequiredNamespaces` object for a given ledgerId. + * @param ledgerId LeggarId + * @param methods string[] + * @param events string[] + * @returns `ProposalTypes.RequiredNamespaces` + */ +export const networkNamespaces = ( + ledgerId: LedgerId, + methods: string[], + events: string[], +): ProposalTypes.RequiredNamespaces => ({ + hedera: { + chains: [ledgerIdToCAIPChainId(ledgerId)], + methods, + events, + }, +}) + +/** + * Get the account and ledger from a `SessionTypes.Struct` object. + * @param session SessionTypes.Struct + * @returns `ProposalTypes.RequiredNamespaces` + */ +export const accountAndLedgerFromSession = ( + session: SessionTypes.Struct, +): { network: LedgerId; account: AccountId }[] => { + const hederaNamespace = session.namespaces.hedera + if (!hederaNamespace) throw new Error('No hedera namespace found') + + return hederaNamespace.accounts.map((account) => { + const [chain, network, acc] = account.split(':') + return { + network: CAIPChainIdToLedgerId(chain + ':' + network), + account: AccountId.fromString(acc), + } + }) +} diff --git a/src/providers/DAppSigner.ts b/src/providers/DAppSigner.ts new file mode 100644 index 0000000..2beb4be --- /dev/null +++ b/src/providers/DAppSigner.ts @@ -0,0 +1,106 @@ +import { + Signer, + AccountBalance, + AccountId, + AccountInfo, + Executable, + Key, + LedgerId, + SignerSignature, + Transaction, + TransactionRecord, +} from '@hashgraph/sdk' +import { ISignClient } from '@walletconnect/types' +import { Buffer } from 'buffer' + +import { HederaJsonRpcMethods } from '../lib/constants' +import { buildSignAndReturnTransactionParams, buildSignMessageParams } from '../lib/dapp' +import { base64StringToTransaction, ledgerIdToCAIPChainId } from '../lib/utils' + +export class DAppSigner implements Signer { + constructor( + private readonly accountId: AccountId, + private readonly client: ISignClient, + public readonly topic: string, + private readonly ledgerId: LedgerId = LedgerId.MAINNET, + ) {} + + request(request: { method: string; params: any }): Promise { + return this.client.request({ + topic: this.topic, + request, + chainId: ledgerIdToCAIPChainId(this.ledgerId), + }) + } + + getAccountId(): AccountId { + return this.accountId + } + + getAccountKey(): Key { + throw new Error('Method not implemented.') + } + + getLedgerId(): LedgerId { + return this.ledgerId + } + + getNetwork(): { [key: string]: string | AccountId } { + throw new Error('Method not implemented.') + } + + getMirrorNetwork(): string[] { + throw new Error('Method not implemented.') + } + + getAccountBalance(): Promise { + throw new Error('Method not implemented.') + } + + getAccountInfo(): Promise { + throw new Error('Method not implemented.') + } + + getAccountRecords(): Promise { + throw new Error('Method not implemented.') + } + + async sign( + data: Uint8Array[], + signOptions?: Record, + ): Promise { + throw new Error('Method not implemented.') + } + + async signMessages(messages: (Uint8Array | string)[]): Promise { + const signedMessages = await this.request({ + method: HederaJsonRpcMethods.SIGN_MESSAGE, + params: buildSignMessageParams(this.accountId.toString(), messages), + }) + + return signedMessages.map((signedMessage) => Buffer.from(signedMessage, 'base64')) + } + + async signTransaction(transaction: T): Promise { + const signedStringTransaction = await this.request({ + method: HederaJsonRpcMethods.SIGN_AND_RETURN_TRANSACTION, + params: buildSignAndReturnTransactionParams(this.accountId.toString(), transaction), + }) + + return base64StringToTransaction(signedStringTransaction) as T + } + + async checkTransaction(transaction: T): Promise { + throw new Error('Method not implemented.') + } + + async populateTransaction(transaction: T): Promise { + throw new Error('Method not implemented.') + } + + async call( + request: Executable, + ): Promise { + throw new Error('Method not implemented.') + } +} diff --git a/test/dapp/DAppConnector.test.ts b/test/dapp/DAppConnector.test.ts new file mode 100644 index 0000000..7c3dc55 --- /dev/null +++ b/test/dapp/DAppConnector.test.ts @@ -0,0 +1,30 @@ +import { LedgerId } from '@hashgraph/sdk' +import { DAppConnector } from '../../src' + +const PROJECT_ID = 'ce06497abf4102004138a10edd29c921' + +const appMetadata = { + name: 'DApp Test', + url: 'https://dapp.hedera.app', + description: 'Hedera Hashgraph DApp Example.', + icons: [ + 'https://cdn-assets-cloud.frontify.com/s3/frontify-cloud-files-us/eyJwYXRoIjoiZnJvbnRpZnlcL2FjY291bnRzXC8xNFwvMTQzMTI3XC9wcm9qZWN0c1wvMTgwMjE1XC9hc3NldHNcL2M3XC8zNDU0ODY3XC85ZjM1NDliYmE5MGQ2NDA0OGU0NzlhZTNiMzkyYzY4Yy0xNTY2NTkxOTQ4LmpwZyJ9:frontify:v_zJvQTCjtNploUvnSpk8S5NJB4R5eei6f7ERL2KSeQ?width=800', + ], +} + +describe('DAppConnector', () => { + let connector: DAppConnector + + describe('connect', () => { + it('should stablish connection and create session', async () => { + connector = new DAppConnector(appMetadata, LedgerId.TESTNET, PROJECT_ID) + await connector.init() + expect(connector.walletConnectClient).not.toBeNull() + + await connector.connect((pairing) => { + console.log('PairingString: ', pairing) + }) + expect(connector.walletConnectClient?.session.getAll()).toHaveLength(1) + }, 60_000) + }) +})